Using and maintenance of optical fiber welding machine battery ( 2) ,

Using and maintenance of optical fiber welding machine battery ( 2) 2020 - 05 - 09 factors affecting lithium battery should generally can put 300-500 times. Best to partial discharge of the lithium battery, rather than completely discharge, and try to avoid often completely discharge. Once the battery off the production line, the clock began to move. Whether or not you use it, the service life of lithium-ion batteries are only in the initial years. Battery capacity decline is caused by the oxidation of internal resistance increases, This is the main cause of the battery capacity decline) 。 Finally, the cell resistance can reach a certain point, although a full battery at this moment, but can not release already stored power battery. Lithium battery aging speed is determined by the temperature and charging status. The table below shows the capacity of the battery under two kinds of parameters. Temperature charging 40% & 100% 0 deg. One year after the C capacity by 98% a year capacity 94% 25 & deg; One year after the C capacity by 96% a year capacity 80% 40 & deg; One year after the C capacity by 85% a year capacity 65% 60 & deg; C capacity by 75% a year later after three months capacity 60% by visible figure, high charging status and increase the temperature of the accelerated the battery capacity decline. Experimental data figure factor 1: number of discharge depth and rechargeable left image obtained from experiment data can be know, rechargeable number and discharge depth, the deeper the depth of the battery discharge, the less number of rechargeable. Rechargeable number * discharge depth = total number of charge cycle is complete, the higher the total charge cycle to complete the number, the higher the represent the life of the battery can be charged, number * discharge depth = actual battery life ( Ignore other factors) Factor 2: overcharge, discharge, and large avoid overcharge for battery charging and discharging current, any form of overcharge lithium ion battery will was badly damaged by the battery performance and even explode. Avoid large charging and discharging current, because large current to the battery put too much pressure. Factor 3: hot or too cold temperature also has great influence for the lithium battery life. Below freezing environment has the potential to lithium battery at the instant of the electronic products open burning, and hot environment will reduce the capacity of the battery. Influencing factors of 4: long time full of electricity, without electricity too high and too low power state to have an adverse effect on the lifespan of lithium battery. Logo on most selling electrical or battery can be recharged and discharge are 80% benchmark. Lithium battery had better be in power in the middle of the state, in that case the battery life expectancy. On can be summed up by the following points can extend the life of the lithium battery capacity and the matters needing attention. Do not let the battery run out, Automatic shutdown) If you want to travel, can put the battery, but in the case of conditions allow for electric charge at any time. First use items, maintaining moderate lithium ion battery charging and discharging can prolong battery life. Lithium ion battery maintained at 10% ~ 90% is conducive to protect the batteries. Second, equipped with lithium ion battery of digital products is exposed to sunshine, or in a hot car under the best products in the closed state, the reason is that if the operating temperature more than 60 degrees Celsius, lithium ion battery can accelerate ageing. Lithium battery temperature range: 0 ~ 45 degrees Celsius, lithium battery discharge temperature range of 0 to 60 degrees Celsius. Third, under normal circumstances, 50% save the most conducive to lithium ion battery. Use method 1, understanding memory effect battery memory effect refers to the reversible battery failure, namely the performance of the battery can be reactivated after failure. Memory effect refers to the battery for a long time through specific work cycle, tend to keep this particular automatically. Suggestion 1: every time there is no need to charge the battery before discharge, and it is harmful, because useless shorten the life of the battery. Suggest 2: use a resistor connect is the cathode of the battery discharge is not desirable, can't control current, easy to 0 v, even lead to series of battery cell polarity reversal. 2, the battery fully charge and discharge the battery factory factory the pool to the user's hands, for a long time, the battery electrode material will passivation, so suggest to use for the first time the battery is best for 3 to 5 times completely filling process, in order to eliminate the passivation of electrode material, to achieve maximum capacity